The IGP yesterday handed over the investigation to the CID from the crime division of Narahenpita police, said police media spokesman SSP Ajith Rohana at a media briefing in Colombo today.
Thajudeen was found dead in his car, which had been gutted after it crashed onto a wall in Kirulapone.
The post-mortem examination has determined that considerable amounts of carbon dioxide had been in his body.
After a delay, the government analyst’s report into the death was submitted only in February 12, but it has contained no conclusion.